SGM41518
SGM41518 is 1.26A Single-Cell Battery Charger manufactured by SG Micro.
FEATURES
- High Efficiency, 1.5MHz, Synchronous Buck Charger
- 95% Charge Efficiency at 1A from 5V Input
- Selectable PFM Mode for Light Load Efficiency
- Boost Mode Support
- Boost Efficiency of 95.5% at 0.5A and 95% at 1A
- PMID_GD Pin Control External P-MOSFET for Protection against Fault Conditions
- Selectable PFM Mode for Light Load Operations
- Single Input for USB or High Voltage Adaptors
- 3.9V to 13.5V Operating Input Voltage Range
- 22V Absolute Maximum Input Voltage Rating
- Programmable Input Current Limit and Dynamic Power Management (IINDPM, 100m A to 3.2A with 100m A Resolution) to Support USB 2.0 and USB 3.0 Standards and High Voltage Adaptors
- Maximum Power Tracking by Programmable Input Voltage Limit (VINDPM) with Selectable Offset
- VINDPM Tracking of Battery Voltage
- High Battery Discharge Efficiency with 10mΩ Switch
- Narrow Voltage DC (NVDC) Power Path Management
- Instant-On with No or Highly Depleted Battery
- Ideal Diode Operation in Battery Supplement Mode
- Ship Mode, Wake-Up and Full System Reset Capability by Battery FET Control
- Flexible Autonomous and I2C Operation Modes for Optimal System Performance
- Fully Integrated Switches, Current Sense and pensation
- External Direct Charging Path Enable Output
- 9μA Ship Mode Low Battery Leakage Current
- High Accuracy
- ±0.5% Charge Voltage Regulation (8m V/Step)
- ±5% Charge Current Regulation at 1.26A
- ±7.5% Input Current Regulation at 0.5A
- Safety
- Battery Temperature Sensing (Charge/Boost Modes)
- Thermal Regulation and Thermal Shutdown
- Input Under-Voltage Lockout (UVLO)
- Input Over-Voltage (ACOV) Protection
APPLICATIONS
Smart Phones, EPOS Portable Internet Devices and Accessory
SIMPLIFIED SCHEMATIC
USB Host
Input 3.9V to 13.5V
I2C Bus Host Control...
